The lithics recently recovered from the Sheringham Shoal estuaries by the Taken at the Flood project are undergoing microscopic analysis by Dr Adrian Evans as part of our work to understand the nature of the assemblage. The research focuses on the degree of ridge attrition on these artifacts, assessed by examining the rounding or flattening of triangular ridges—a feature indicative of post-depositional movement. The analysis is being conducted using the Alicona SL, a high-resolution 3D optical microscope that employs focus variation technology to capture detailed surface topography. This advanced system enables precise, non-contact measurements of ridge width and shape with sub-micron accuracy, providing a more comprehensive understanding of surface wear compared to traditional epi-illumination methods. Initial observations are showing the technique to be valuable, though the analysis is ongoing. These findings highlight the potential for recovering and analysing archaeological material from underwater contexts, offering valuable insights into movement and context preservation.

For more information on these finds – https://submergedlandscapes.teamapp.com/articles/8847500